Answer:
angle FEA is 100°
angle AEC is 20°
angle CEG is 60°
Step-by-step explanation:
angle AEC=angle DEB=20°
angle AEG=angle FED=80°
80°-20°=60°; angle CEG=60°
angle FEA+angle AEC+ angle CEG=180°
angle FEA=100°
A standard normal distribution has a mean of zero; half the bell curve is to the left of zero and half to the right.
A standard normal distribution has a standard deviation of 1 and follows the 68-95-99.7 rule; e.g. 99.7% of the probability is between -3 and +3.
Choice a
Answer:
12x²+4x
Step-by-step explanation:
the formula for area of a rectangle is length * width so
area = 4x *(3x+1)
12x²+4x
When you multiply x by itself you get x squared and because 4x is not squared the cannot be combined.
The answer is 6x3+3x-6 because all you need to do is combine your like terms